Home / 56,300.94-77,696.43-31,150.86

Finding the Fourth Proportional to 56,300.94, 77,696.43 and 31,150.86

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Solution

The fourth proportional to 56,300.94, 77,696.43 and 31,150.86 is: 42,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,300.94 : 77,696.43 = 31,150.86 : x
  2. Step 2: Convert to fraction form
    56,300.94/77,696.43 = 31,150.86/x
  3. Step 3: Cross multiply
    56,300.94x = 77,696.43 × 31,150.86
  4. Step 4: Simplify right side
    56,300.94x = 2,420,310,613.43
  5. Step 5: Solve for x
    x = 2,420,310,613.43/56,300.94
  6. Step 6: Final answer
    x = 42,988.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.